Roller-bearing axle-box



(No Model.)l f f 2 Sheets-Sheet 1.

' P. J. TUNNY.

ROLLER BEARING AXLE BOX. No. 547,465. 5 Patented Oct. 8, 1895.

2 Sheets-Sheet 2.

(No Model.)

P. J. TUNNY. ROLLER BEARING AXLB B0X.

No. 547,455. 555511555 055. a, 1855.

l NM1 l] MAJ 1| Il l HW'III/l witwassen v @uom/w13 NiTE STATES PATENTEETCE.

PATRICK J. TUNNY, OF CHICAGO, ILLINOIS.

Romea-BEARING AxLE-Box.

SPECIFICATION forming part of Letters Patent No. 547,465, dated October8, 1895.

Application iiled Tune 25, 1895.

.To all whom t may concern:

Be it known that I, PATRICK J. TUNNY, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illi nois, haveinvented certain new and useful Improvements in Roller-BearingAxle-Boxes; and I do declare the following to be a full,

clear, and exact description of the invention,-

such as will enable others skilled in the art to which it appertaius tomake and use the saine, reference being had to the accompanyingdrawings, and to the ligures of reference marked thereon, which form apart of this specification.

This invention relates to hubs for vehiclewheels; also, and moreparticularly, to rollerbearing axle-boxes.

It has for its object the prevention of the entrance of dust, abradingparticles, or moisture to the lubricated surfaces, and it is designedwith the View of aitording improved antifriction axle-bearings withinwhich the weight of the load shall be supported upon the lines ofrollers instead of the points of balls, thus multiplying thecontact-areas with a consequent decrease in the wear of the meetingparts, as well as effecting a distribution of the wear along thespindle.l

A further object of my invention is to provide an axle-box of which theprincipal parts are retained in position obedient to a condition oftension existing between them, no threads being employed in thisconnection.

The essential features of my invention are the telescoped main andcomplementary axlebox sleeves of original construction and the speciallyadvantageous manner of assembling the parts, as hereinafter described indetail. Oil-carrying washers are introduced, several of which encirclethe spindle at each end, and the end-play of the hub is successfullyminimized, while the rattling of the parts in motion is almost entirelyobviated. y

In the drawings forming part of this description like numbers are usedto designate like parts.

Figure l represents, principally, alongitudinal sectional view of myinvention. Fig. 2 shows a similar sectional view of my axlebox only,dealing with a modification thereof; and Fig. 3 shows the washersprovided with orifices for the retention of oil. From Fig. 3

it will be seen that the orifices are placed at different distances fromthe axis.

In the two views of my device l represents the axle of the vehicle. Thespindle may be either truly cylindrical or tapering. If ofthe latterform, cylindrical divisions are turned near the endsof the spindle toaccommodate the rollers.

Numeral 2 marks the rollers, ot' ordinary cylindroid form.

Numeral 3 represents the main axle-box sleeve, which has throughout thegreater portion of its length a bore slightly greater than that of theinclosed spindle. Near one end the sleeve 3 expands into a portion 4, ofgreater interior and exterior diameter, and the added internal spaceconstitutes the channel for the rollers. At the point where theexpansion ot the sleeve 3 commences the metal is somewhat thickened, andan interior annular groove 5 is fashioned to receive the rounded ends ofthe rollers. It will be noticed that the curved outl line ot' thesection of groove 5 exceeds a quadrant and approximates a semicircle.The reason for this construction will be explained hereinafter. Thelonger portion of sleeve 3 varies slightly in external diameter, whichis least near the expanded portion 4 and longer as the opposite end ofthe sleeve is approached. A gain in flexibility results from thetapering construction, which is utilized when the parts are pressed intofinal position.

N umerals 6 6 represent slots through sleeve 3, so placed as to enablethem to be reached by a special tool within the axle-box while in thehub, in :order that the sleeve may be driven out of the hub whennecessary.

Numerals 7 7 represent rings provided with grooves similar in allrespects to groove 5 in the sleeve 3 and the complementary sleeve 8,hereinafter described. The rings 7 fit tightly within the expandedportion 4 of the sleeve 3 and limit the end-play of the rollers. Theextensions of the groove 5 and the grooves in rib 9 and rings 7, belowthe axes of the rollers, serve to retain them in position when the Wheelis removed from the axle. Figs; l and 2 show the relations of the parts,it is thought, sufficiently.

Numeral 8 represents the complementary sleeve of the axle-box. Theinterior diameter of the main portion of the sleeve is slightly IOO 1o acircular rib, and upon that side of the rib toward the enlarged sectionof the sleeve an annular groove 9, similar in all respects to-y thegroove 5 and to those in rings 7, already described, is provided. Theinterior diameeter of the sleeve 8, between the grooved rib and theenlargement 10, is the internal diameter of the enlargement l of thesleeve 3,

and one of the rings 7, pressed into the sleeve 8, completes theretaining-pathway for the` zo rollers at that end of the spindle, in them'ani l has been fixed, bearing the packing-rings 19 ner previouslyexplained herein.

Numeral 12 represents the axle-nut, which may be constructed With aperipheral groove to contain the packing 14. lVhen so formed, thepressure between the dust-band 1l and. the packing 14 is regulated onlyby moving the axle-nut 12. This mode of regulation being the packing. Bysuch means the packing is rendered adjustable, the grooved ring beingheld in place by its ownfricti`on, Which will,

be found generally sufficient, as shown in Fig. 2. Idonot confine myselfto this method of locking the grooved ring 13, as any equiva-` f oneover the other and to maintain their conlent means may be employed.

Numerals 15 15 Arepresent chilled-steel washers, provided with orifices16 to retain 4o oil for lubrication, as shown by Fig. 3.

17 marks the hub proper, having the bore through which the two sleeves 3and 8 may:

moisture and for-keeping the parts in position,

be pressed, as already stated.

18 represents a ring or collar of metal, so formed as to t tightlyagainst and upon thev shoulder of the axle, as shown in Fig. 1. Thispiece remains attached to the axle, and l it is provided with aperipheral groove 19, tor be occupied by a dustproo'f circle of'packing.l 5o An additional ring of packing 2,0 rests againsti the inner surfaceof the Hange of collar 18, and, together with the packing 19, bearsagainst a smooth ring 21, firmly fitted into.v

i 'arranged substantially as and for `the purrepresent modifications oftherings 7. Ring 22 differs the bore of the hub.

Numerals 22 and 23 in Fig. 2

from the rings 7 chiefly in width, and its use calls for aprolongation'of theenlargementof the sleeve 8, as shown. In the modifiedconstruction the enlargement of the sleeve 3 is shortened and the piece23 is developed so as 1 to rest against the outer end as well as toinclose a portion of that enlargement. The piece is extended farther andoppositely to provide a circular depression, Within which are placedWashers 15. The latter extension of the piece 23 also affordsabearing-surface for the side of the packing 20, otherwise in Contactwith the hub proper.

The assembly ofthe various parts of my invention within a hub preparedto receive them proceeds as follows: The main sleeve is forced into thebore of the conned hub,usually by an hydraulic press. The complementalsleeve is similarly introduced and compelled to telescope with thefirst, their joint elasticity serving to fix their positions. Therollers are now inserted and the rings pressed into the sleeves andwithout binding upon the rollers retain them in place, as described. Theaxle, upon which the collar 18 and 20 and the washers, can be passedthrough the hub and the remaining independent parts set up, as indicatedin Figs. 1 and 2. l I am aware that sectional dustproof axlevboxes inhubs, together with roller-bearings, have been patented, and I do notclaim those features, broadly.

'What- I do claim, and desire to protect, is-

1. In an anti-friction axle bearing, the combination fofa prepared hubwith an axle-box consisting of a sleeve having an enlarged portion nearone end provided with an interior annular groove, and a sleeve having aninterior circular rib vprovided with an annular groove, said sleevesadapted to be forced nection by mutual stress, grooved rings attached tosaid sleeves, suitable rollers movably retained between said rings andsaid sleeves, the axle spindle, adjustable packing rings and devices forexcluding dust and substantially as and for the purposes herein vshownand described.

2. In an anti-friction axle bearing, the combination with a 'hubprepared to receive' it, of the axle-box consisting of the sleeve, 3,the sleeve, 8, the rollers, 2, the grooved ring, 22, the ring, 23,having, interiorly, the grooved rib, the axle, the collar, 1S, attachedto the axle, the Washers, 15, the adjustable ring, 13, borne by the axlenut, and the packing rings,

poses shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

PATRICK J. TUNNY. Vitnesses:

YAN URBAN, E. RoUsEK.

IOC

